Type A , V1 -V2. 4 seat mail transport B/Umbau
Engine Four Junkers-205D diesel engines with Junkers-Hamilton three-blade variable-pitch propellers Four Junkers-205C diesel engines with Junkers-Hamilton three-blade variable-pitch propellers
Dimensions Length  , height  ,  span  , wing area   , Length 20,07 m , height 4,8 m ,  span 29,5 m , wing area  130 m2 ,
Weights Empty , loaded  , max. take off weight   Empty 10340 kg, loaded 19000 kg , max. take off weight  
Performance Max.. speed  , cruising speed  , range , endurance  , service ceiling   , climb Max.. speed  288 km/h at 3000 m, cruising speed 238 km/h at 2000 m , econmical speed 200 km/h, ferry  range 4600 km at 238 km/h, 4950 km at 200 km/h endurance  , service ceiling   , climb 2, 8 m/sec.
Armament 4 x 7.92 mm (0.312 in) MG 15 machine guns in nose, flight deck roof hatch, and staggered fuselage lateral mountings
Type Werk.Nr Registration History
A V1 181 D-AMIE First fligh in the fall of 1936. and was transferred to Lufthansa in March 1937. under the designation Ha.139a "Nordmeer".
A V2 182 D-AJEY It was followed in June by the Ha.139-V2
B V3 217 D-АSTA A slightly larger version, designated Ha 139 B.entered Lufthansa under the designation Ha.139b Nordstern. The engines remained Jumo-205С
The aircraft were flown by Deutsche Luft Hansa on transatlantic routes between 1937 and 1939, predominantly between Bathurst, The Gambia and Natal, Brazil. Catapult-launched from an aircraft tender they were able to transport 500 kg of mail over a distance of up to 5,000 km.

On the outbreak of World War II, the planes were transferred to the Luftwaffe and used for transport, reconnaissance and minesweeping work over the Baltic Sea. They were not particularly suited for military use.